Development History Of Stainless Steel Precision Casting

Development history of stainless steel precision casting

Investment casting is developed on the basis of ancient wax mold casting.
As an ancient civilization, China is one of the earliest countries to use this
technology, far away from BC hundreds of years, the ancient people of China has
created this kind of lost wax casting technology, used to cast a variety of fine
patterns and text zhongding and utensils, such as the spring and autumn of the
Yi Tomb, such as the plate. Once Hou tomb of the base for a number of
intertwined dragon, they are connected to each other, the upper and lower
staggered, forming the Middle hollow multi-layer moire pattern, these patterns
with ordinary casting process is difficult to create, and using the lost wax
method casting process, can use the paraffin wax no strength, easy to carve the
characteristic, with the ordinary tool can carve out with the Yi Tomb to get the
same wax material handicraft, then add the pouring system, paint, dewaxing,
pouring, can get exquisite Yi Tomb Zun.

Modern investment casting method has been applied in industrial production
in the 1940s. The development of jet engines at that time required the
manufacture of heat parts, such as blades, impellers and nozzles, which were
complex in shape, precise in size and smooth in surface. Because heat materials
are difficult to be machined, the shape of the parts is so complex that it is
impossible or difficult to make with other methods, so we need to find a new
precise forming process, and draw on the lost wax casting from ancient times,
after the improvement of materials and technology, the modern investment casting
method has obtained important development on the basis of ancient technology.
Therefore, the development of the aviation industry has promoted the application
of investment casting, and the continuous improvement and perfection of
investment casting has created favorable conditions for further improving the
performance of the aviation industry.

In the Fifties or sixties of the 20th century, China began to apply
investment casting to industrial production. Since then, the Advanced foundry
technology has been greatly developed, which has been widely used in the
manufacturing industries of aviation, automobiles, machine tools, ships,
internal combustion engines, gas turbines, telecommunication instruments,
weapons, medical devices and knives, and is also used in the manufacture of arts
and crafts products.